128879421

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{21577}}^1$

素因数の和:21772

約数の個数: 16

約数和(自身を含む): 188505408

約数和(自身を除く): 59625987

約数列:

[1, 3, 11, 33, 181, 543, 1991, 5973, 21577, 64731, 237347, 712041, 3905437, 11716311, 42959807, 128879421]

約数ペア:

[(1, 128879421), (3, 42959807), (11, 11716311), (33, 3905437), (181, 712041), (543, 237347), (1991, 64731), (5973, 21577)]